Rcbos and mcbs split load board | Page 2 | on ElectriciansForums

Discuss Rcbos and mcbs split load board in the Electrician Courses : Electrical Quals area at ElectriciansForums.net

There was a time when 'split' boards had only one RCD. From the right, there was the mainswitch, a line of a few MCB's, then an RCD mainswitch and another line of MCB's.
Everything to the left of the RCD was protected by the RCD. Everything to the right, wasn't.

I think the OP was asking if one of the non-protected MCB's could be changed.
Answer, yes. But the current rating and type should be suitable for the circuit.
The L & N of the outgoing circuit are both terminated into the RCBO. The neutral fly lead from the RCBO goes into the neutral bar that the circuit N came from (ie, the one that doesn't come from the RCD mainswitch)

Safety Disclaimer:-
The inside of the main consumer unit is full of little terminal screws that can give you a little tingly if you accidently touch one.
Even with the mainswitch off, there is live terminals at the top of the switch, very close to the neutral bar.
Our advice, as always, is to have this work done safely by a qualified and competent electrician

EDITTED. I see now OP is a trainee... so knows all about tingles
 
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To be fair on this occassion the OP is a Trainee, that said he or she should really come back and clarify what the actual first post is all about.
 
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It must have been a long day yesterday, as I've only just spotted the mention of 'split load board' in the title.. :tearsofjoy::tearsofjoy:
Looks like we are not going to get things clarified... I still think I'm right in my thoughts... :tearsofjoy::tearsofjoy::tearsofjoy::tearsofjoy::tearsofjoy::tearsofjoy:
At least I have 4 days off work now... :grinning::grinning:
 
Upvote 0
It must have been a long day yesterday, as I've only just spotted the mention of 'split load board' in the title.. :tearsofjoy::tearsofjoy:
Looks like we are not going to get things clarified... I still think I'm right in my thoughts... :tearsofjoy::tearsofjoy::tearsofjoy::tearsofjoy::tearsofjoy::tearsofjoy:
At least I have 4 days off work now... :grinning::grinning:
can you also have 4 days off the forum? :D:D:D:D.
 
Upvote 0

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